Hi jack, thank you for your reply.
I’m using a Ubiquiti USW-Enterprise-8-PoE (120W) switch:
I’m not sure about the diameter of the DC power cord. I can see the official Radxa DC power cable diameter in specifications and try to get one exactly alike today.
After testing with power meter, looks like current is going through correctly (please see fotos). But still no boot.
I can also get an ATX power supply today to test, however ideally I need it to be powered by PoE for my setup.
UPDATE1:
Got myself another DC, 12V 5A: nothing.
Got an ATX Power Supply: Blue Light!! However now it’s not booting, absolutely nothing happens.
Pressed Maskrom and connected to Mac via USB and I can find the device at least, need to see what I can do next. Frustrating!